Airman 1st Class Chad Nyquist, an aircraft fuels systems apprentice course student in the 361st Training Squadron, secures a fuel bladder seal inside a KC-135 Stratofortress wing trainer at Sheppard Air Force Base, Texas, June 21, 2018. Nyquist, a native of Coeur d'Alene, Idaho, was recently earned an ACE award after he scored a 100 on each of the five block tests during the 36-day course. (U.S. Air Force photo by John Ingle)